Firefox

Mozilla Firefox, or simply Firefox, is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary, Mozilla Corporation. Firefox is officially available for Windows 7 or ...
Language(s): C++, JavaScript, HTML, C, Rust
Operating system(s): Linux, mac OS: OS X 10.9 or later, Windows 7 or later, Android Jelly Bean or later, iOS 11 or later, FreeBSD, OpenBSD, NetBSD, illumos, Solaris
License: Mozilla Public License (MPL) 2.0

Tor

Tor is free and open-source software for enabling anonymous communication. The name is derived from an acronym for the original software project name "The Onion Router". Tor directs Internet traffic t...
Language(s): C, Python, Rust
Operating system(s): Windows, Unix, Android, Linux, Mac OS
License: BSD 3-clause license